Searching Gunt's tweets for "pregnant," he last referred to May as pregnant on Jan 21st and Jan 24th, both in regards to the Fuck Ralph Festival. Before that was the cringy Christmas pic on December 27th.
If something happened between Dec 27 and Jan 21st, whether it was a miscarriage or an abortion, I really doubt Ralph would bring it up Jan 21st and 24th. I think he'd let it silently go away and probably never address it, even if it is missing an opportunity to "own the haters."
I feel pretty confident that the most obvious explanation - that May is still pregnant - is correct, but Ralph's white trash tendencies very often surprise me so what the fuck do I know?
I think May is a bit shell-shocked by the amount of hate she is receiving and the number of people making fun of her looks. The breadth of attacks - she looks like a man, she looks like a horse, she's ugly, her bikini picture was terrible, etc. etc. - was something she was almost certainly unprepared for when she started dating the Ralphamale. I don't know much about her history before Ralph so correct me if I'm wrong. But I think most of her life she probably got reinforcement from other women when posting online, saying shit like "hahaha omg ur so cute!!

" and these new experience of people bashing her appearance nonstop is probably pretty terrible for her.
I'd reckon that this is causing her to be somewhat trepidacious to share personal things on Twitter these days.