LYNN – A Lynn teen accused of beating his pregnant girlfriend over the weekend appeared in court Monday.Elder Dario Solis, 18, of 70 Kirtland St., was arraigned at Lynn District Court by Judge Albert Conlon and released on personal recognizance. A pre-trial hearing has been scheduled for April 21.According to court documents, the victim, who is six months pregnant, told police that her boyfriend of two years, Solis, frequently comes home drunk and then allegedly beats her.On Friday, the victim said she had called her cousin to pick her up around 11 p.m., so that Solis wouldn?t be able to beat her up when he came home. As she was packing a few items to leave, she said Solis returned home and made her unpack, saying she wasn?t going anywhere.The two argued for a few minutes and then Solis allegedly grabbed the victim by her hair and punched her on both arms and her back. Police say bruises were found on both upper arms.As the victim was being assaulted, her 15-year-old cousin barged into the apartment shouting for Solis to stop, but Solis allegedly punched him in his left eye, which also left a bruise.Both victims managed to get out of the apartment and they called the police from a home on Williams Avenue. Medical attention was refused by both, along with information regarding obtaining a restraining order.The victim later told police that over the course of their two-year relationship, Solis has allegedly beaten her 10 times, but this incident marks the first time she has called the police.Solis was charged with domestic assault and battery and one count of assault and battery on a pregnant victim.