I had some seriously fucking annoying calls for months, sometimes 30 times a day, i called my provider, (o2) and they said they couldnt block the calls, but could change my number, i didnt want to, and why should i?
O2 told me to contact the police and they would keep tracing the calls, police came to see me, and really werent interested in doing anything, and tbh i didnt want to waste their time, then my phone rang, it was a witheld number and the cop answered it, then he decided he was going to investigate and hunt them down etc!
Calls continued for a weeks, it was a female, screeching and screaming over and over, i got the impression she was quite young, but got to the point where if i had gotten hold of her, i really wouldve beaten her sensless.
Anyway, whilst on the phone to o2 at the start of all of this they told me the number that was calling me was almost identical to my own, so it was probably just some random saddo that was dialing numbers to get a reaction, a few weeks later whilst on the phone to the malicious calls dept at 02 they accidently told me the number that was calling me, cos the number was so similar to mine, they thought they were reading out my mobile number, not the numberof little bitch that was harrassing me, so, i had her number.
I rang her, and got her mum on the phone, i told her what had been going on, i gave het the name of the officer investigating and the crime number, and i got a load of foul mouthed abuse off the mum too! Then she rang me back, but didnt withold her number, i also got a call of the sister, it was never ending.
It turned out to be a teenage girl, and even though i spoke to the mum, told her the police were involved, it didnt stop, in fact it got worse, so, o2 couldnt/wouldnt do anything, and the police said it was an unregistered number and they couldnt do anything wither.
I told the police if they couldnt do anything, i would, and i did, now im not asking for opinions as to whether you think i did right or wrong, i did it and it felt fabuluous. As i said, i had the little cows number, and that of the foul mouthed rough as a badgers arse mother, so i posted their phone numbers on a dogging site, with specific instructions for perverts to ring/text with all their fantasies, the more warped the better, i also told the police i was gonna do it, they advised me not to, but i did, and funnily enough the calls did stop.
I dont give a toss how old this little shit was, if she was old enough to be up ringing me at 2am then she was old enough for a few pervy calls. I think she mustve changed her sim card and got a new number cos i havent heard from the little witch for a few months.
So, no advice to give, just wanted to say, o2 also told me they cant block numbers, but the police told me thats bullshit, mobile phone providers can block but they choose not to! Either way, after hundreds of this screechy calls, (and they were so loud my boss once heard her screaming at me down the phone from another room) i was fed up and wanted revenge, i got it, it worked and it felt good.
Orange can change your number instantly, you keep your sim and they can do it right away, i choose not to have mine changed, but it is probably the best option, your pregnant OP, change it, and lose the stress, im also now 25 weeks pregnant, fortunately my calls stopped before i was, but i know how stressful nuisance calls are.
Sorry for the long post!