Hey everyone! Just would like some advice please

Im 20 years old and 15 weeks and 5 days pregnant, Ive had no sickness for the whole time, except the last few nights.. Thursday I went to bed and 3am i started getting really bad belly ache and was sick and its happened again last night but a little earlier. Is it normal to have sickness this late on? and is it normal to have belly ache along with it?? Sorry if this is a silly question im new to all of this

Thank you in advance 

xx