Work colleagues winding me up?

[stillballin]

Hi all I am 22 years old and have been in a job since may

I found out I was pregnant in December and I've been seeing a boy for 5 years but we broke up just before I started this job in may due to working opposite shifts was stressing us out we wanted a break
So when I joined my job a boy fancied me at work and I went out with him for 2 weeks just was heartbroken and was trying my mind off my ex partner but I never told many in work about my partner of 5 years, so I ended up getting back with him in August there and now I found out I'm pregnant in December, I never tell my work colleagues much and never told them I was back with my partner of 5 years now that they've found out I'm pregnant they are winding me up at work about not knowing who dad is and making me feel terrible just cause they don't know anything that is going on in my life
I feel like just quitting the job as they are making my life very stressful and i shouldn't feel bad for not telling people what I do with my life, any advice ? I hope this all makes sense I am just all over the place I had a really rough day at work thank you all

Why don't you just tell them it's your partners who you've been with for 5 years on and off?

I've just read your other post too.

If it's relentless bullying at your work (permanently laughing/telling you the baby is not your partners) then I would take it further and speak to your manager/HR.
From what you've written above, can you do as PP has said and just say "the dad is my on/off partner of 5 years".

In your other post you said you feel like you're starting to believe them. Is that just because they keep saying it, or is there a chance that the baby could be someone else's and you're worried?