I found out october 15 that I was pregnant, my last period was September 11. I am 24 weeks now which equals 6 months. She can't be only 2 and a half months.
They would be 19 weeks, 4 days along gestational age, last menstrual period age would be around 21 weeks depending on her cycle. (4.5-5 months along) Two months ago would have been in December. So unless this person had sex after that date, it's impossible they would be two months along now in late February. So it's obvious she's lying if she only had sex in October.